package com.awei.study.domain;

import com.awei.study.constant.Constants;

import java.io.Serializable;

/**
 * 响应信息主体
 *
 * @author ruoyi
 */
public class R<T> implements Serializable {
	private static final long serialVersionUID = 1L;

	/** 成功 */
	public static final int SUCCESS = Constants.SUCCESS;

	/** 失败 */
	public static final int FAIL = Constants.FAIL;

	/** 异常(失败的分支) */
	public static final int EXCEPTION = Constants.EXCEPTION;

	private int code;

	private String msg;

	private T data;

	public static <T> R<T> ok() {
		return restResult(null, SUCCESS, null);
	}

	/**
	 * 提示:入参将赋值到data,如需赋值到msg，请调用 ok(null, String msg)
	 * 
	 * @param data
	 * @return
	 */
	public static <T> R<T> ok(T data) {
		return restResult(data, SUCCESS, null);
	}

	public static <T> R<T> ok(T data, String msg) {
		return restResult(data, SUCCESS, msg);
	}

	public static <T> R<T> fail() {
		return restResult(null, FAIL, null);
	}

	public static <T> R<T> fail(String msg) {
		return restResult(null, FAIL, msg);
	}

	public static <T> R<T> fail(T data) {
		return restResult(data, FAIL, null);
	}

	public static <T> R<T> fail(T data, String msg) {
		return restResult(data, FAIL, msg);
	}

	public static <T> R<T> fail(int code, String msg) {
		return restResult(null, code, msg);
	}

	public static <T> R<T> exception() {
		return restResult(null, EXCEPTION, null);
	}

	public static <T> R<T> exception(String msg) {
		return restResult(null, EXCEPTION, msg);
	}

	public static <T> R<T> exception(T data) {
		return restResult(data, EXCEPTION, null);
	}

	public static <T> R<T> exception(T data, String msg) {
		return restResult(data, EXCEPTION, msg);
	}

	public static <T> R<T> exception(int code, String msg) {
		return restResult(null, code, msg);
	}

	private static <T> R<T> restResult(T data, int code, String msg) {
		R<T> apiResult = new R<>();
		apiResult.setCode(code);
		apiResult.setData(data);
		apiResult.setMsg(msg);
		return apiResult;
	}

	public int getCode() {
		return code;
	}

	public void setCode(int code) {
		this.code = code;
	}

	public String getMsg() {
		return msg;
	}

	public void setMsg(String msg) {
		this.msg = msg;
	}

	public T getData() {
		return data;
	}

	public void setData(T data) {
		this.data = data;
	}

	/**
	 * 判断是否成功
	 * 
	 */
	public boolean isOk() {

		return this.code == SUCCESS;
	}

	/**
	 * 判断是否异常
	 * 
	 */
	public boolean isException() {
		return this.code == EXCEPTION;
	}
}
